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Guarantor Subsidiaries And Non-Guarantor Subsidiaries (Supplemental Condensed Consolidating Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Jan. 31, 2013 | Jan. 31, 2012
Net cash (used in) provided by operating activities | $ 171,277 | $ 137,389
Capital expenditures | (53,920) | (93,186)
Acquisition of businesses | (19,958) | 342
Other investing activities, net | 246 | (904)
Net cash used in investing activities | (73,632) | (93,748)
Proceeds from borrowings under long-term debt | 96,000 | 56,000
Payments of other long-term debt | (96,444) | (56,383)
Repurchases of common stock | 0 | (7,869)
Dividends paid | (13,458) | (10,801)
Other financing activities, net | 6,722 | 911
Advances | 0 | 0
Net cash provided by (used in) financing activities | (7,180) | (18,142)
Effect of exchange rate changes on cash and cash equivalents | 61 | 0
Net increase (decrease) in cash and cash equivalents | 90,526 | 25,499
Beginning of period | 46,053 | 70,143
End of period | 136,579 | 95,642
Parent Company [Member] |  |
Net cash (used in) provided by operating activities | (14,033) | (15,584)
Capital expenditures | 0 | 0
Acquisition of businesses | 0 | 0
Other investing activities, net | 0 | 0
Net cash used in investing activities | 0 | 0
Proceeds from borrowings under long-term debt | 0 | 0
Payments of other long-term debt | 0 | 0
Repurchases of common stock |  | (7,869)
Dividends paid | (13,458) | (10,801)
Other financing activities, net | 3,934 | 912
Advances | 23,557 | 33,342
Net cash provided by (used in) financing activities | 14,033 | 15,584
Effect of exchange rate changes on cash and cash equivalents | 0 |
Net increase (decrease) in cash and cash equivalents | 0 | 0
Beginning of period | 0 | 0
End of period | 0 | 0
100% Owned Guarantor Subsidiaries [Member] |  |
Net cash (used in) provided by operating activities | 185,445 | 152,379
Capital expenditures | (53,385) | (93,117)
Acquisition of businesses | (19,958) | 342
Other investing activities, net | 228 | (904)
Net cash used in investing activities | (73,115) | (93,679)
Proceeds from borrowings under long-term debt | 96,000 | 56,000
Payments of other long-term debt | (96,236) | (56,186)
Repurchases of common stock |  | 0
Dividends paid | 0 | 0
Other financing activities, net | 2,585 | (373)
Advances | (23,801) | (33,342)
Net cash provided by (used in) financing activities | (21,452) | (33,901)
Effect of exchange rate changes on cash and cash equivalents | 0 |
Net increase (decrease) in cash and cash equivalents | 90,878 | 24,799
Beginning of period | 38,380 | 63,365
End of period | 129,258 | 88,164
Other Subsidiaries [Member] |  |
Net cash (used in) provided by operating activities | (135) | 594
Capital expenditures | (535) | (69)
Acquisition of businesses | 0 | 0
Other investing activities, net | 18 | 0
Net cash used in investing activities | (517) | (69)
Proceeds from borrowings under long-term debt | 0 | 0
Payments of other long-term debt | (208) | (197)
Repurchases of common stock |  | 0
Dividends paid | 0 | 0
Other financing activities, net | 203 | 372
Advances | 244 | 0
Net cash provided by (used in) financing activities | 239 | 175
Effect of exchange rate changes on cash and cash equivalents | 61 |
Net increase (decrease) in cash and cash equivalents | (352) | 700
Beginning of period | 7,673 | 6,778
End of period | $ 7,321 | $ 7,478

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